55326650342645 has 32 divisors (see below), whose sum is σ = 77247829996416. Its totient is φ = 37594220185600.

The previous prime is 55326650342641. The next prime is 55326650342669. The reversal of 55326650342645 is 54624305662355.

It is not a de Polignac number, because 55326650342645 - 2² = 55326650342641 is a prime.

It is a super-2 number, since 2×55326650342645² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55326650342641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215831351 + ... + 216087540.

It is an arithmetic number, because the mean of its divisors is an integer number (2413994687388).

Almost surely, 2^{55326650342645} is an apocalyptic number.

55326650342645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55326650342645 is a deficient number, since it is larger than the sum of its proper divisors (21921179653771).

55326650342645 is a wasteful number, since it uses less digits than its factorization.

55326650342645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431919061.

The product of its (nonzero) digits is 77760000, while the sum is 56.

The spelling of 55326650342645 in words is "fifty-five trillion, three hundred twenty-six billion, six hundred fifty million, three hundred forty-two thousand, six hundred forty-five".